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Share-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended						9 Months Ended			3 Months Ended		9 Months Ended		0 Months Ended			9 Months Ended								9 Months Ended
	Nov. 01, 2014	Aug. 02, 2014	May 03, 2014	Nov. 02, 2013	Aug. 03, 2013	May 04, 2013	Nov. 01, 2014 Equity_Plan	Nov. 02, 2013	Jan. 31, 2014	Nov. 01, 2014 Employee Stock Purchase Plan [Member]	Nov. 02, 2013 Employee Stock Purchase Plan [Member]	Nov. 01, 2014 Employee Stock Purchase Plan [Member]	Nov. 01, 2014 Non-Employee Director [Member]	Aug. 01, 2014 Chairman of Board [Member]	Aug. 01, 2014 Chair of Audit Committee [Member]	Aug. 01, 2014 Chair of Compensation Committee [Member]	Nov. 01, 2014 2013 Restricted Stock Units (RSUs) [Member] First Anniversary [Member]	Nov. 01, 2014 2013 Restricted Stock Units (RSUs) [Member] Second Anniversary [Member]	Nov. 01, 2014 2014 Restricted Stock Units (RSUs) [Member]	Nov. 01, 2014 2014 Restricted Stock Units (RSUs) [Member] Officer [Member]	Nov. 01, 2014 2014 Restricted Stock Units (RSUs) [Member] Officer [Member] Net Sales Target [Member]	Nov. 01, 2014 2014 Restricted Stock Units (RSUs) [Member] Officer [Member] ORONA Target [Member]	Nov. 01, 2014 2014 Restricted Stock Units (RSUs) [Member] Officer [Member] Third Anniversary [Member]	Nov. 01, 2014 Equity Incentive Plan [Member]	Nov. 01, 2014 Equity Incentive Plan [Member] Non-Employee Director [Member]	Nov. 01, 2014 Restricted Stock [Member] Non-Employee Director [Member]	Nov. 01, 2014 Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity incentive plan							1
Award vesting period																										12 months	4 years
Aggregate shares authorized for awards under the Plan																								1,000,000
Shares available for grant under the Plan																								205,164
Restricted stock unit vested percentage																	50.00%	50.00%			50.00%	25.00%	25.00%
Maximum disposal restricted percentage of RSU							50.00%
Cumulative budgeted net sales target measurement period																				2014 through 2016
Option expiration period																									10 years
Stock options grant to each non-employee director							155,600																		5,000
Non-employee director is entitled to an annual cash retainer							$ 7,000
Non-employee director is entitled to an annual cash retainer additional													500
Amount of Chair Retainer payable														6,000	4,000	4,000
Non-employee director received restricted stock award value							20,000
Options granted weighted average fair value per share	$ 2.84	$ 2.93	$ 2.43	$ 0.00	$ 2.79	$ 2.79
Unrecognized compensation expense related to unvested options																											518,000
Unrecognized compensation expense related to unvested options, recognize date																			Through April 2016								Through August 2018
Unrecognized compensation expense related to unvested RSUs and RSAs																			$ 286,000
Employee Stock Purchase Plan discount rate												15.00%
Reservation of shares under Stock Purchase Plan							247,500
Shares purchase under Employee Stock Purchase Plan							2,464	3,152		872	886
Stock options granted	693,067						693,067		736,647	57,778		57,778

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Cash paid to each non-employee director for each board meeting attended.

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Non employee director received restricted stock award value.

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Number Of Equity Incentive Plans

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Reservation of shares under employee stock purchase plan.

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Restricted stock unit vested percentage on anniversary of the grant date provided the grantee is employed by the company and the company achieves specific thresholds of net sales and annual operating income.

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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Unrecognized cost of unvested options awarded to employees as compensation.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Discount rate from fair value on purchase date that participants pay for shares.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of options outstanding, including both vested and non-vested options.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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